I did not reboot. On the first try it gave me this error.

Error log:

Error 167: Protected Range Registers are currently set by BIOS, preventing flash access.
Please contact the target system BIOS vendor for an option to disable
Protected Range Registers.

FPT Operation Failed.

If you have done well the rewriting varsmod.txt , then it means that the Eeprom is not unlockable ...

Lost_N_BIOS
Show info
@mesh17 - Great, so the vars edit does unlock FPRR, good to see, and you have tested recovering via programmer now too,
also great! So, put back in your original dumped BIOS with programmer, unless that is what you have now?
Then flash in the modified vars, and then send me new FPT BIOS region dump (or is this what is above)?

In this case only the SPI Programmer CH341a + the Pomona Clip can do the job.
I have got two of these laptops , both by CH341a modded ... Taro6987_1.10 and widuo16_v.1.10 :(

Reboot and try again ...

I'm gonna try to do this without the use of the programmer but in case it becomes necessary I will buy it.
I'm having problems in post #16 ([REQUEST] Acer Nitro 5 (AN515-54)) where there's varsM.txt and I think you were gonna send me an edited vars.txt as well but I'm not seeing it the zip file you sent me in the link. if it gets fixed without programmer it'll be really great.

Edit: okay I think I messed up, please wait.

Yes friend, you can try to make it by RU shell or EFI shell too ... don't forget it !

ok so i got the varsmod.txt i put it in the H2OUVE_200.00.01.00 folder then ran write.bat after that I rebooted then i got into the Bios.Rog195_V1.33_EH50F_Mod folder that you sent me and ran the this command: FPTw.exe -bios -d biosregmod.bin. it worked without any errors, however when I was gonna boot in to the BIOS it asked me for password. i had password before and it was "1" and now it seems like it has changed. have you changed it?
by the way the picture is after I failed to enter the password 3 times in a row.

Ok friend, that command read as -d parameter is read - bios the bios region, then the file name biosregmod.bin ... but if the parameter was -f , then it means flash , write ...
Please make again a result file to check the bios backup and Eerpom unlocked ... i will reply quickly, i didn't set any password and normally it needs to
disable secure boot and tpm and bios pwd ... we can remove it flashing the bios backup again or using some sites that give the unlock code too ...
but it was wrong that you set a bios administrator password !

Look here :

https://www.youtube.com/watch?v=hSQkfmtXEDg

https://www.youtube.com/watch?v=jb50G_vGzn4

https://bios-pw.org/

https://let-def.github.io/insydious/

let me know

it almost worked the options are now available but the fan control options are useless they dont do anything. if they're not controlled by the bios what are they controlled by?

So you unlocked it ? can you upload the Bios Menu Tabs photos to see the unlocked ones and the Fan options, may be there are others into EFI IFR ...
Let me know
Regards

Here are the images: https://mega.nz/file/vUZVDQYC#P2Xq-HZOtl...TtmQ8W6_uAKTCFY

@Rog195

So which settings are broken , please let me understand , i will find these into IFR and will check them ...
Regards

P.S. many thanks for the shots

Please check thermal configuration and especially platform thermal configuration where the fan controls are. Almost nothing works there.

I changed the CPU power limits in the BIOS... even that's not sticking. What is going on?

Hi Rog195, this bios is weird , but it's nothing to do further ... try to ask to Taro6987 ...

Unlocked Acer Nitro 5 AN517-51 Overclocking Features Greyed Out

@BDMaster thanks for all the help. I'll do some research and see what i can find.